Subject: Chemistry
Topic: Electrolysis
Sub-topic: The industrial applications of electrolysis
Level: S.4
Learning objective:
1. Content
Students should be able to use the knowledge they have learnt about electrolysis to produce a
group project on a topic related to the industrial applications of electrolysis.
2. Language:
Students should be able to write a project report with clear section headings and sub-headings
for their project.
This activity was produced/ adapted by Mr. Lee Chun Man
S.4 Chemistry
Electrolysis
The industrial applications of electrolysis
Project Work
Name: _________________ No.:____________ Class:_____________ Date:___________
Part 1 Group Project (60% of total mark):
Instructions:
1.
Work in groups of 6.
2.
Choose ONE of the following topics to do a project:
3.
—
Extraction of reactive metals
—
Purification of metals
—
Aluminium anodization
—
Manufacture of chlorine, hydrogen and sodium hydroxide
—
Electroplating
—
Environmental concerns of electroplating
Only one group can work on each topic: If there are two groups choosing the same topic,
then a draw will be used to determine which group works on which topic.
4.
Read the students' project learning handbook and complete all the tasks in it.
5.
Write a short project report (about 1000 - 1500 words) with references included.
Part 2 Presentation (40% of total mark):
Instructions:
1.
You are expected to do the presentation using Powerpoint.
2.
Group leaders collect a notebook computer and peer-evaluation forms from the
teacher’s bench for the presentation.
3.
Assign one or two group members as the presenters.
4.
Each group gives a short oral presentation (about 5 minutes) on the chosen topic.
5.
There will be a question and answer section (for about 3 minutes) after each group's
presentation.
6.
At the end of all presentations, each group will evaluate the other groups’ performance.
This evaluation also contributes some marks to the project and will be used to determine
the "Best Project Award".
The Industrial Applications of Electrolysis: Students' Project Learning Handbook
Instructions:
A. Stages of Project Learning
1.
Formation of groups and selection of a topic
Get into groups of 6 and choose ONE of the following topics for your project:
—
Extraction of reactive metals
—
Purification of metals
—
Aluminium anodization
—
Manufacture of chlorine, hydrogen and sodium hydroxide
—
Electroplating
—
Environmental concerns of electroplating
2.
Collection of information (Part B)
3.
Processing of information (Part C)
4.
Presentation of information in a written report (Part D)
B. How to Collect Information
1.
Decide on what you would like to find out about your topic. Write them down as
research questions.
Think about the 5 W-questions to help you identify research
questions. You can also think about possible areas such as the chemical basis, the
industrial uses, what is required to make it work, examples of uses.
2.
Search for information useful to answer your research questions.
3.
Use various methods to collect information, e.g. reading books, magazines and
newspapers, surfing the Internet, etc.
4.
Collect various types of information, e.g. text, pictures.
5.
Record the information collected properly. (Use Part A in the "Record of Work for
Project" below).
C. How to Process Information
There are different methods you can use to process information.
1.
Select relevant information.
Some methods are:
You can start by discarding information which is
inaccurate, unreliable and irrelevant for the research questions.
2.
Summarize the main points in the information.
3.
Transform the information from one mode to another, e.g. from text to diagram or table.
4.
Classify the information according to their nature, e.g. reasons, results, similarities and
differences.
5.
Identify the relationship between various parts of the information.
D. How to Present Information
1. Present your information in the form of a written report.
2. Your report should contain the following sections:
—
Topic and information of team members (full name, class, class number)
—
Introduction: State the objectives and methods of study.
—
Main body: Include main points, examples and figures
—
Conclusion: Summarize the main points.
—
Reference list: Include all references used in your report (e.g. books, newspaper,
websites).
—
Appendix: Include any information for readers’ reference.
3.
Present your ideas through multiple media (words, diagrams and pictures).
4.
Organize the content properly in each section:
— Design suitable headings and subheadings. They can show the structure of the
presentation clearly and summarize the main points.
— Make sure the ideas under the headings and subheadings are related to them.
— Write in proper paragraphs.
— Avoid repetition of content.
— Match the words and diagrams i.e.texts can be supplemented with diagrams and
diagrams should be accompanied by captions.
5.
Make your presentation pleasant.
—
Use computer softwares to edit texts and images.
—
Apply art work to the presentation (e.g. design of report cover and page layout).
E. Useful Websites
1.
General references about project learning:
http://cd.emb.gov.hk/projectlearning/index_e.html (CDI)
http://cmi.l-hku.hk/project/project.html (CMI Centre. HKU)
http://www.fed.cuhk.edu.hk/~asp/asp_infolink.html (CUHK)
http://www.fed.cuhk.edu.hk/~asp/Essav/ProjectLearn/index.html (CUHK)
http://www.project-approach.com/ (overseas institute)
http://pblmm.k12.ca.us/index.html (overseas institute)
2.
School exemplars:
http ://pupil.skhlkyss.edu.hk/~project/
http://cd.emb.gov.hk/projectlearnmg/sampler/st_st/sampler_e.html
http://cd.emb.gov.lik/projectlearnmg/sampler/wts_pt/sampler_e.html
http ://cd.emb.gov.hk/proiectleammg/sampler/tsw_mps/sampler_e.html
http://cd.emb.gov.hk/projectlearning/sampler/fyw/sampler_e.html
3.
Specific skills/techniques relevant to project learning:
http://www.graphic.org/goindex.html (various graphic
organizers) http://www.hked-stat.net/common/ (statistical
diagrams)
4.
Useful search engines on the Internet:
http: //www.yahoo.com http://www.google.com
Assessment Criteria
Your project work will be assessed based on the following criteria.
Area
♦
Relevance to topic
♦
Variety of methods
♦
Level of difficulty
♦
Record of sources
♦
♦
♦
Relevance to topic
Richness
Soundness of arguments and
conclusion
Originality
♦
♦
♦
♦
♦
Organization
Diversification of presenting
media
Creativity and appearance
Use of English
♦
♦
♦
Communication and cooperation
Attendance and involvement
Discipline
What have you learnt in this presentation?
N.B.: Hand in this paper at the end of the presentation.